Understand co-dominance

Practice Questions

AP Biology › Understand co-dominance

Questions
6
1

The shorthorn cattle coat color exhibits codominance. If a homozygous red individual and homozygous white individual produce an offspring, what will the resulting coat color be?

2

Scientists are trying to figure out the dominance hierarchy for a newly discovered plant. They have found that when a true-breeding yellow plant is crossed to a true-breeding green plant, the resulting offspring have distinct spots of yellow and green. What is the most likely explanation for this result?

3

In humans, blood type is determined by three alleles: A, B, and O. Both the A and B alleles are dominant to the O allele. When both A and B are present, however, a combined phenotype of AB results. In AB individuals, both A and B antigens are fully expressed on the cell surface. This is an example of __________.

4

A mother with type A blood and a father with type B blood have a child. What blood type is impossible for that child to have?

5

Blood type exhibits codominance. and are dominant alleles, and i is recessive. results in blood type , results in blood type , and i results in blood type . If an individual with genotype produces offspring with an individual with blood type what will be the blood type of the resulting offspring?

6

In a specific type of flower the genes coding for color display codominance. What would you expect the phenotype to be for a cross between a flower homozygous for white coloration and a flower homozygous for red coloration?

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